10. A researcher claims that the mean monthly consumption of coffee per person is more than 19 cups. In a sample of 60 randoml selected people, the mean monthly consumption was 20. The standard deviation of the sample was 4 cups. Which is the parameter to be tested in this claim? A. sample of 60 randomly selected people B. mean consumption of 60 selected people C. the mean consumption of coffee per person D. the standard deviation of the sample which was 4 cups
Inverse Normal Distribution
The method used for finding the corresponding z-critical value in a normal distribution using the known probability is said to be an inverse normal distribution. The inverse normal distribution is a continuous probability distribution with a family of two parameters.
Mean, Median, Mode
It is a descriptive summary of a data set. It can be defined by using some of the measures. The central tendencies do not provide information regarding individual data from the dataset. However, they give a summary of the data set. The central tendency or measure of central tendency is a central or typical value for a probability distribution.
Z-Scores
A z-score is a unit of measurement used in statistics to describe the position of a raw score in terms of its distance from the mean, measured with reference to standard deviation from the mean. Z-scores are useful in statistics because they allow comparison between two scores that belong to different normal distributions.
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